* [PATCH] usb: musb: mpfs: fix phy unregister in remove()
@ 2026-09-14 11:09 Felix Gu
2026-09-15 18:18 ` Conor Dooley
0 siblings, 1 reply; 2+ messages in thread
From: Felix Gu @ 2026-09-14 11:09 UTC (permalink / raw)
To: Conor Dooley, Daire McNamara, Bin Liu, Greg Kroah-Hartman
Cc: linux-riscv, linux-usb, linux-kernel, Felix Gu
mpfs_remove() passed the glue platform device instead of the
registered generic PHY to usb_phy_generic_unregister(). This
unregistered the glue device from within its own remove
callback and leaked glue->phy.
Pass glue->phy instead.
Fixes: 7a96b6ea90a4 ("usb: musb: Add support for PolarFire SoC's musb controller")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
---
drivers/usb/musb/mpfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/musb/mpfs.c b/drivers/usb/musb/mpfs.c
index 587127abd30a..6cc2909b8ae3 100644
--- a/drivers/usb/musb/mpfs.c
+++ b/drivers/usb/musb/mpfs.c
@@ -357,7 +357,7 @@ static void mpfs_remove(struct platform_device *pdev)
clk_disable_unprepare(glue->clk);
platform_device_unregister(glue->musb);
- usb_phy_generic_unregister(pdev);
+ usb_phy_generic_unregister(glue->phy);
}
#ifdef CONFIG_OF
---
base-commit: 68142f986ff04b2b70b31db00f719bf690f64a9a
change-id: 20260914-mpfs-086b7d22f8e5
Best regards,
--
Felix Gu <ustc.gu@gmail.com>
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] usb: musb: mpfs: fix phy unregister in remove()
2026-09-14 11:09 [PATCH] usb: musb: mpfs: fix phy unregister in remove() Felix Gu
@ 2026-09-15 18:18 ` Conor Dooley
0 siblings, 0 replies; 2+ messages in thread
From: Conor Dooley @ 2026-09-15 18:18 UTC (permalink / raw)
To: Felix Gu
Cc: Conor Dooley, Daire McNamara, Bin Liu, Greg Kroah-Hartman,
linux-riscv, linux-usb, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 1253 bytes --]
On Mon, Sep 14, 2026 at 07:09:13PM +0800, Felix Gu wrote:
> mpfs_remove() passed the glue platform device instead of the
> registered generic PHY to usb_phy_generic_unregister(). This
> unregistered the glue device from within its own remove
> callback and leaked glue->phy.
>
> Pass glue->phy instead.
>
> Fixes: 7a96b6ea90a4 ("usb: musb: Add support for PolarFire SoC's musb controller")
> Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Thanks,
Conor.
> ---
> drivers/usb/musb/mpfs.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/musb/mpfs.c b/drivers/usb/musb/mpfs.c
> index 587127abd30a..6cc2909b8ae3 100644
> --- a/drivers/usb/musb/mpfs.c
> +++ b/drivers/usb/musb/mpfs.c
> @@ -357,7 +357,7 @@ static void mpfs_remove(struct platform_device *pdev)
>
> clk_disable_unprepare(glue->clk);
> platform_device_unregister(glue->musb);
> - usb_phy_generic_unregister(pdev);
> + usb_phy_generic_unregister(glue->phy);
> }
>
> #ifdef CONFIG_OF
>
> ---
> base-commit: 68142f986ff04b2b70b31db00f719bf690f64a9a
> change-id: 20260914-mpfs-086b7d22f8e5
>
> Best regards,
> --
> Felix Gu <ustc.gu@gmail.com>
>
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